1.

Find V0 when VI is 2V.(a) 0V(b) 0.7V(c) 1V(d) 1.7VI have been asked this question by my school principal while I was bunking the class.The origin of the question is Rectifiers topic in portion Diodes of Electronic Devices & Circuits

Answer»

Correct answer is (a) 0V

For EXPLANATION I would say: VI = 2v

Vo = 0v

VA = -0.7v

V– = 0v

Virtual gnd as negative feedback is CLOSED through R.

VI > 0 D1 conducts D2 cutoff.

VI < 0 D2 conducts D1 cutoff.

^V0 ⁄VI = -1.



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